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Finding the Fourth Proportional to 483.70, 726.36 and 264.20

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Solution

The fourth proportional to 483.70, 726.36 and 264.20 is: 396.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.70 : 726.36 = 264.20 : x
  2. Step 2: Convert to fraction form
    483.70/726.36 = 264.20/x
  3. Step 3: Cross multiply
    483.70x = 726.36 × 264.20
  4. Step 4: Simplify right side
    483.70x = 191,904.31
  5. Step 5: Solve for x
    x = 191,904.31/483.70
  6. Step 6: Final answer
    x = 396.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.